This already happened with me and I have learnt my lessons already. This is why I keep saying that there should be equilibrium between how much money you redistribute into bitcoins and altcoins. For many of us alts are like ocean of profits and that's true but it doesn't mean you should have all of it. Also, once you think that bitcoin is coming up at any time then just grab your alts and exchange them against the bitcoin and then let them grow there. That's like adding up bonus to your trade or exchange. Once the prices are very stable at some time point bitcoin then you can sell them and reinvest into your alt portfolio when they are down. This way earnings can actually be multiplied many times.

Alt traders who are holding so much alts whitout keeping some of BTC will definitely gonna be hit with this BTC high. Breakeven. They should be holding also some of BTCs for this times that BTC price is surging. I think come november ther will be a fork, and BTC is expected to go down.

Yes even my altcoin portfolio dropped upto 50% while comparing with btc most of the coins even high potentiality coins also struggling hope everything will be settle down after next hardfork . People are collecting bitcoin for getting free coin may be bitcoin gold.